Auxiliary support and disk for disk harrow gangs



Dec. 31, 1957 J. H. FULPER 4EVAL AUXILIARY SUPPORT. AND DISK FOR DISK'HARROW GANGS Filed Sept. 22, 1953 2 Sheets-Sheet 1v Dec. 31, 1957 J. H. FULPER ETAL 2,818,008

AUXILIARY SUPPORT AND DISK FOR DISK HARROW GANGS Filed Sept. 22, 1953 2 Sheets-Sheet 2 nited States Patent@ UXIIJIRJY SUPPOR'IA'NDDISK FORDISK HARROW GANGS IohneH'. liulper;Kewauee,-.y Hughv E. CooperyRochellef andfRohertaLnGliddeu; Kewanee,1ll.,assiguors to Kewanee=Machinem &Conyeyor .Company,Kwa11.eeIll.,v alcorppratibn oflllioist Appllcatiumseptemhexez'z; 1953, .Serial'iNn 38ilgf724:v

1T Cl'aiins. (CIJ 97.--22'0)1 This: invention,` relatesrtof.: ar.: tandem disk wharroxavfrand issdihectedtor anizauxiliary:supportzand diskifadapted fon user'in connection: Wdtha. one for: butin of fthe rear.E diski gangs? oli such 'harnowr to lill im,thezundesinableatrough left byathee-latenal.outerfendl'diskmnd whichtrouglnanks. thurrhrokemiandunwonked surface/oft the soil.;

. More; specifically, .the present: invention:- relatanV toa-.- an

auxiliary? supportthatfisf.conveniently attaehablexrto: ar

bumper ofraedisk igangf-of :a1 :diskC barrow, ..whichi bumper is: eonstrnatedr` andi' arrangedi tra` cooperate with.. the.: exft tensionsandi tozreeeivefthersecnning meansa-foneonneeting attachmenbftonthe: disk gang?l Itis a function yof:s the r extensiomofethe present inventionttoicanny auxiliary'mecheanisim-in;spaeedrrelationawiththefouter. endi of af reare gang;I oftdisksr-Aandfmoret specifically to; support am auxe iliaryf disk having; afvsmaller diameter than-i the. diameter. of. thedisks ot. thegang;,.whieh fsmaller', diameter disle.

fulfills, thes-earth-tnoughf refilling; function.-oathe. present inventions-.1y

It -hassbeenffound .that with` the.,- use: ottherconyentional type of disk harrow in the eld that the en.ddisk..of1one. of:y thezrear, diskaharuow'- gangs, forms a,furro.w. alongthe edgeaofatlie.unwonkedsoil,Z and; the. endr diskof, the..oppo. siezgangaforms, at furrow` 4along the edgelof'thefpreviously, workedasoilnwhich; tlurrmvs` are: normally comparatively`v deepmand .clean oli` top..V soil., s Although the r. disk, .narrowl may, againetraverse theeield adjacent on. over ,thisefura mw, the rear-enten diskszstillf leave,uuflledrfurrows.and

'Y It, is. another object' ofithe. presentinveution. to provide y aibumper which` provides theterminallstrueture, QL the rear gangsinv lieu` ofatlie usual.4 normaL-typeused as a b'earirig elementA between the front. gangs. wherein. this. Bumperai's arranged with) cooperative: fsteningportions to receive `the extension and auxiliary means constructed andarranged to support any suitable furrow-l.liugtool such`,as ardiskl in outboardarelation. with respeetjto. the, adj'a'centwgang.. In this ..connection,. it. should-,15e under? stoo'dltliat. the .ordinary assembly; of gangs.. comprises, a.

plurality of disks and spacing .spoolstherebetween and: i

th'aftheaentire .assemblyv is, locked'. together. by. means.. oi a .spindle bol'tthat passes through al1.`of`the disksand. spools, this bolt' being threaded .atene endto, receive. the lockinghut arrangement... The otherendof..` this spindle holt'receivesthe bumper or. bearngmemben and this bumper is connected wit-hina. bolt asthe.f-rste1e ment-in the,assembly-voithedisk gang.. Thehead, of.. the spindle bolt" normally nests withima, suitably formedres cess. in the bumper with.. the conuexsidegofthefrstdisk 2 iniitheassem'bly littingin thew concave `side of the. bumper and the` subsequent disks and spools are all' assembled upon the. samebolt'until the proper length of disk gang is assembled; at' which time the securing nut is threaded upon the endjofithe spindle bolt.`

After Ythis disk gang'sassembled;` it is highlyl impractical to attach an, additional. spool to the endthereof tosupportahy additional' equipment inoutboardrelation to* the first@ disk-sof the assembly since4 that would-r re`.- quire the disassembly? of the-'entirefstructure and suhstitution ofalonger spgindlebolt as"is-obvi'ous from the ex;- planatione hereinbeforefgiven.-`

Itiis, therefore; another'objeet: ofthis invention-to proa vide-a= bumper designed to eliminate anydisassembly of tliedi'sk gang -offtli'e-'diskl lrarrow-andk to-make available' afmeansa-.wllichl oanwbeyused for' attachable auxiliary equipment suehvasf-the@ furrow llin'g'ftool or. disk of` the present"invention when th'ef user is performing worle where?. suohff an extensionlv wouldt` be-desirable. Under otherf-'conditi'ons offf'operationfof "they dskharrow thej use of a supplemental.diskfor: tooll' may not" be needed-or desired; andirwltinthe.I extension: apparatus herein pro-v posed;y suchreh'oicey ofusefonwnonuse of the ad'cledf'di'sliy orfothemtoolfare'. made readily` optional. to lthe operatorwithezlttlefzeiforttw needediiin: :makingf the. change over;-`

Itr'isr another obiectffotev the present inventioni tofpro.`V

vide atisnppoutz andra: toollon` diskiiwhichr area connected on i'associatedxiwitir: amadjanentf disk'.v gang and;` wherein. the| extension` onsupponting means; is; providedr with mechanisrm thattzwillr:adjusxtahlyfipositiornftherictutboardt` disk; on othenfequipmentz inra selected; giyenrspaeedi relationrwitlr mspectwto fthezadjacentafinsti .disktofztheg` di'sk gangfassema bly. This provides an adjustment thatrisllighlyeicient and praetieal `imobtaining; afprfoper--llingrzofatl1ezrrow withrloose soil under varying 's'oilconditions.: Normally lighter soilfnisfthrowmfurther..thana-heavwsoil. ands-with; the; yadjustable -r extension; means fory supporting the-@fune row-r fi1ling,.disk in .isrpossibleffon the operator toi-obtain a fr givenyquantity#r on ear-the. for til-ling; thei furrow;- cutjfby; the end diskffinatheaadjacent.;worked-or unworkedt sury faeecofathersoil `by"suchadjustability.. Iteis, aaiurther` objeetof therpresentrinventionr-to.:prix vide a telescopic tubular arrangement. oli? mechanism. whichwill;.adequatelyasupport an1 auxiliary dislsorfattachmenmeans in, zaagivenr. relatiornA beyond-thay normal terminali end. .of a...disk;gang,.

Ofthen objectsandadvantages .relatingstotheY auxiliary,` sul2l2-0irLau1dH disk/fort diskr. barrow.` gangs.l shall-s herein after... appearaim th'effollowing zdetailedn description shaving reference; tothe. accompanying.,drawings-forming3 appart of 'tliis;.speeiii'catiium- I'n. the drawingsza.

Figure.. lli'is. a. general'perspeetiveview ola diskrharr row incorporatingtlie apparatus. of,v the-prese1ut--.ilmen-A tion, whi'cll comprises an auxiliary- Y. supports and.n disk, ase sociated 'with` one offtlie.t disk.. gangs .offtha dSIQYhaI'IQW-f Figyle Tis anenlargedide'tail'view;.o. ther rightarear. disk gangsofthe. disk; harrow shownfin Figure. 1,i.11-'.:1l1.d-`f ingjthe; furrow' lining-mechanism ask associated. therewith certain portions of.."tliis illustration. being broken. away. andin'..section;A

Figurejjis a'fiagmentary diagrammatic, view of-tlie ende' portibnofthedisk"gaugslown in Figure .2' illustrate ing# generally'V the' relation-ship of l the" first disk" and". the. auxiliary-y dis'ki-as `cooperatively functioning to fill; in'th'e furrow out 1by-ltlefirst diskl` of f the-gang assembly;-

Figuref: 4i:s1 anrenlangedf axial cross f sectional view` of' thegfauniliany'suppnrt: andsdiskffor: therrear gang'of the disk. barrow andi substantiall'yr as rseen-ialong.. the 'line inj:Eigure.2;

l FigurefS is'a .-trfansverfse; cross: sectional view ta-kerrzzsub1 d sltautallyralong the line; 5,-1-5; inxEigure; .4f/.torbetten'zi1lusg 'trate the construction of the bumper or bearing unit employed in connection with the present invention;

Figure 6 is a side elevational view of one of the extensible members of the supporting unit as the same appears when viewed from above or with respect to the top of this piece as indicated in Figure 4; and

Figure 7 is another side elevational view of another portion of the extensible unit also as viewed from the top in relation to the position in which it is shown in Figure 4.

The disk harrow generally indicated in Figure l comprises the usual framework 1 that is supported by wheels 2 and 3 to the swingable arms 4 and 5 connected to a rocking tube construction 6 including adjustable mechanism such as 7 for varying the angle of the wheels and arms with respect to the ground to thus dispose the frame 1 in a given relation above the ground. The frame 1 consists of auxiliary frames such as 8 and 9 to support the forward disk gangs 10 and 11, while supplemental frames 12 and 13 are carried by the frame 1 to support the rear disk gangs 14 and 15 in the usual manner.

Each of the disk gang assemblies are generally constructed and assembled in the same manner. As shown in Figure 2, the rear gang assembly 15 comprises a plurality of disks 16 of equal diameter which include suitable apertures for assembly over a continuous single spindle bolt 17 which is threaded at 18 to receive a nut such as 19. A plurality of spools such as 20 are also carried upon the spindle bolt 17 to provide a given spaced relation between the adjacent disks, certain of these spools such as 21 and 22 providing the bearing units that are rotatbly carried within bearing structures such as 23 as shown to the left in Figure l, which bearing structures connect with the associated frames such as 12. With this arrangement. the disk gang is pivotally carried `from the frame to rotate as a unit for tilling the soil.

A bumper or bearing unit 24 is carried adjacent the outermost disk as shown in Figure 2, and this bumper is normally connected with the head of the spindle bolt 17, the exact construction of this bumper and bolt arrangement being hereinafter explained. The auxiliary support and disk assembly 25 is connected with the bumper 24 and in general, this unit comprises an extension unit 26 supporting an auxiliary tool or disk 27 in outboard relation with respect to the outer right hand convex side of disk 16 of Figure 2.

Referring to Figure 3, which diagrammatically illustrates the action of the auxiliary equipment used in connection with the disk harrow, this view generally illustrates how the disked earth occupies a level position as at 28 while the undisked earth is shown in an unworked level at 29. The disk 16 in Figure 3 normally cuts its individual furrow as do the other disks, but this particular end disk leaves the furrow such as 30 open since there is no additional disk which will carry the soil laterally inwardly to till up `the furrow 30. Figure 3 additionally shows that a slight ridge or hump 31 is normally formed from some of the earth cast off of the last outer disk of the forward disk gang 11, and this ridge or hump anks or parallels the furrow 30. Through the use of a disk such as 27 mounted in a given spaced relation with respect to the adjacent disk 16, it is possible to at least borrow some of the unworked dirt such as shown at 32 and to move this earth together with the surplus ridge 31 into the furrow 30 as the harrow moves over the field. Thus, instead of leaving the deep trough or furrow 30, the soil behind the disk barrow will assume a general position substantially level as indicated by the broken line 33 in Fgure 3, and will thus eliminate the objectionable furrow that traverses the eld over which the harrow is operating. By proper spacing of the disk 27 from the adjacent disk 16 of the disk gang, it is possible to obtain substantially the correct amount of surplus earth from the unworked portion of the field to till the furrow 30, and this adjustment is possible through the extensible supporting unit 26 which carries the disk 27 in outboard relation beyond the end of the disk gang. Furthermore, the disk 27 is of a diameter proportionally less than the general diameter of the disk 16 of the harrow so that disk 27 etliciently moves enough dirt to normally till the furrow 30 so that the subsequent passage of the furrow over an adjacent portion of the ground will leave the entire ground substantially smooth and level except for the normally filled surface thereof as brought about by the disk harrow.

The extension unit 26 is best illustrated in Figures 4 to 7, inclusive, and comprises generally the base 34 secured to a tube 35 constituting a coupling which is telescopically arranged with respect to a tube 36 that terminates with an abutment plate 37 constituting a tool support, these tubes being oppositely related so as to be axially separable and extensible. The outer tube 35 includes diametrically located slots, one of which is shown at 38 in Figure 3, and has a pair of aligned openings 39 and 40 formed adjacent one end thereof and substantially at right angles to the positions of the slots 38. The inner tube or sleeve 36 is provided with spaced aligned openings 41, 42. 43, 44 and 45. By moving the inner tube or sleeve 36 relatively to the outer surrounding and protecting tube 35, it is possible to align the openings 39 and 40 of the outer tube with any one of the pairs of openings 41-41 to 4545. A locking bolt 46 is inserted through aligned openings as shown in Figure 4, and by tightening down the nut 47 on the threaded end 48 of the bolt 46, the slot separated end portions 49 and 50 of the tube 35 can be formed into tight encircling and gripping engagement with the inner tube or sleeve 36. Thus the bolt means 46 forms a locking structure to secure the two extensible sleeves or tubes 35 and 36 together by engaging through the respective openings therein, and the tightening of this locking means also provides a frictional securement be tween such sleeves to provide a rigid and concentric extensible support.

The abutment plate 37 is provided with an opening 51 to receive a bolt 52 which is threaded at 53 for the reception of a securing nut 54. A tightly fitting sleeve 55 is carried upon the bolt in the position illustrated, this sleeve being squared externally to pass through the squared opening 56 in the disk 27. In addition, the spacing washer 57 is confined between the locking plate 58 and the disk 27 to securely fasten the disk to the abutment plate 37. The locking plate 58 functions as a washer to back up the nut 54, and this plate is also carried in the recessed portion 59 of the spacing washer 57 shown in Figure 4. Normally the plate 58 has an extended portion such as 60 which is turned upwardly in the axial direction of the entire unit to engage one side of the nut 54 to hold the latter against loosening. Thus the entire unit comprising the washer 57, the locking plate 58 and the slot means comprises the securing structure for fastening the outboard disk 27 in a given specified relation with respect to the extensible tubular units 35 and 36.

As shown in Figures 4 and 5, the mounting member or bumper 24 comprises an annular member having an outer at surface 61 that is tightly engaged by the base 34 with the opposite surface of the bumper recessed as at 62 to provide an annular ridge 63 for engaging the adjacent convex side of disk 16 peripherally of the spindle bolt 17. The central portion of the bumper comprises a squared recess 64 to receive the head 65 of the spindle bolt 17 in nested relation therein to produce a clamped relationship between the bumper and disk. Thus the outer face 66 of the spindle bolt is also ush wth the outer face 61 of the bumper.

The bumper is also provided with radially positioned T-slots comprising the slots 67 having narrower contiguous slots 68 aligned therewith as best shown in Figure 5. This provides anged portions such as 69 and 70 that overlie the deeper recesses 71 of the slots 67.

- As shown in Figure 4, the base 34 is provided with o plurality.' of.: openings: 7.2i1that: radially;'surruundtftheaaxis carried" within.l thef slots 72ffand. the headsi741 ofeaclrliof the bolts are adapted to'enten'thel'lisolts when'disasseml bledi fromra radial! outwardfposition toftheffdisposed-into thetrelationship.shownirrligures 4i`andl5i Suitable nuts suchlas 75-securey that base-Silit()`- thelbumper 24fwhen the bolts 7B are'fassembl'e'd into;dispositionsA indicated- This' assemblyi's-y normally carriedfoutliby first droppingy the bolts into the slots MGSUinv-tliebumperZit'iwithi the heads 74 entering the deeper recess 67 to the bottom y71 thereof. Then the-base platel'can'bebrouglitupoverthe bolts 73 and the nursv whenrtlneadedton. totthe bolts for securing; this structure together. In.this.manner, anyadisassembly ofthe normally assembled. diskgangs is entirely avoidedandit is always possible thereafter totsecurean auxiliary extension mechanism of. the. type described to the-bumper of the disk gang to carry-'an outboardzdisk such as 27 or any other auxiliary mechanism in anoutwardly, spaced relation with respect to1the gangpenzse.

-Although-.the sleeves or tubes 35 and y36xmay bezsecured to the base plate 34 or to the abutment plate 37 respectively in any suitable fashion, the present arrangement indicates that these tubes are welded to their respective plates.

The foregoing description has been directed to a preferred construction of auxiliary support and disk for disk harrow gangs. It is contemplated, however, that certain changes may be made in the individual parts or in the assembled combination of these parts without departing from the fundamental concept of this invention. Such changes or modifications shall, however, be governed by the breadth and scope of the language contained in the appended claims directed to this invention.

What we claim is:

1. The combination with a disk gang assembly having an outermost disk, a mounting member having a surface clamped in abutting engagement against the outermost surface of said disk, a coupling separably secured to an opposed surface of said mounting member and extending therefrom in an axial direction, a tool support separably secured to said coupling, and a tool carried by said support in axially spaced relationship to said disk.

2. The combination as set forth in claim 1 wherein said coupling and tool support are telescopically adjustable in an axial direction.

3. The combination as set forth in claim 1 wherein said coupling provides a sleeve and said tool support includes a plug received in said sleeve.

4. The combination as set forth in claim 1 wherein said coupling and tool support contain registrable radial openings and a radial key penetrating certain of said openings separably secures said coupling and tool support together.

5. In a disk harrow having a disk gang assembly comprising multiple disks, spacing spools between said disks, and a spindle bolt connecting said disks and spools, said bolt having securing means at one end to draw said disk gang assembly together; the improvement comprising a bumper connected with the other end of said spindle bolt, an auxiliary disk, an extension unit removably connected with said bumper by means of radially arranged securing means carried by said bumper to removably support said extension unit at points remotely disposed with respect to said spindle bolt axis, and attaching mechanism connected with the outer projecting end of said extension unit to removably carry said auxiliary disk in a given spaced relation with respect to said bumper.

6. In a disk harrow having oppositely related cooperative pairs of front and rear disk gang assemblies wherein the front gangs work the dirt laterally outwardly from the median path of movement of said harrow while the rear gangs work said dirt laterally inwardly toward said median path, an auxiliary harrow mechanism associated 6. with?atr'leastroneA off'sai'd reap diskfgatig'stto: reflittlr'eaabrupt gull'yf fomredimtheigrounditbyf theuoutermostdislflof i'said one gang comprisiirgtantauxiliaryidisiofatpredetermined' smaller* diametersv than thea:V equalrfdiameterrdisksrinasaid one'frearrgangl, andsnrountingstnueture.carriedibyfsaidonet rear:` disk gang: tof-support#k said auxiliauyadi'sli'- in' ad given. outboard fpositionawithtrespect tobth'cfout'ermostffadjacent disk` ffsaid'onerearffdislc-gang-and coaxiallyWithlrespectv toatl're-vdisks=off saidi 'one .gangs comprisingI fastening# memL beps spaced@radiallyhoutwardly witliifrespeet to# the* dislgang-f` axis. and conneetd'a withfsaid'fioutermost# adjacent.- gan'g'fdiska, and! spacing meanscionneeted'fto'a support-=said auxiliary-r disk@ and having contract-ibmw-itli-A` said? radially' arranged fasteningrmembersi 7.1. In arrfattachmentffdr aidi'sk'fgangfiofiax di"skih'arrowA and' adaptedilt'o refilllalateralfyyfoutwardfrmedf-'ground trough left? by theeouteivdisk"oftli'eJ gangfandi'adja'centA tl'ie unWork'edFg-roundsuriice;tlicombination-oftheebumper of said disk gang, a leveling-'diskihavingacpredterminedi smaller-diameter thani v'thef'equalf diameter disks-of' Ysaid gang, and 'supportingf-mechanismrfor said""leveliirg` disk comprising" anadjustabllextension` unitiy removable mounting;V means yat onel end ofi'saidiiunitr"tov'holtii'said leveling disk, a securing base at the other end of said unit and openings provided in said base, said bumper being constructed with slotted recessed portions therein, bolts to fasten said extension unit to said bumper, said bolts being positioned through said base openings with the heads of said bolts releasably carried within said slotted recessed portions of said bumper, and nuts on said bolts to ixedly attach said base to said bumper.

8. In an attachment for a disk gang of a disk harrow and adapted to refill a laterally inward formed ground trough left by the outer disk of the gang and adjacent the unworked ground surface, the combination of the bumper of said disk gang, a leveling disk having a predetermined smaller diameter than the equal diameter disks of said gang, and supporting mechanism for said leveling disk comprising an adjustable extension unit, removable mounting means at one end of said unit to hold said leveling disk, a securing base at the other end of said unit and openings provided in said base, said bumper being constructed with slotted recessed portions therein, bolts to fasten said extension unit to said bumper, said bolts being positioned through said base openings with the heads of said slots releasably carried within said slotted recessed portions of said bumper, and nuts on said bolts to xedly attach said base to said bumper, said base and said extension unit being coaxially arranged with the base openings located in positions radially outwardly with respect to said unit, and said bumper and base occupying coaxial positions with the slotted recessed portions of the bumper arranged to receive said bolt heads radially inwardly from the peripheral exterior portion of said bumper.

9. In an attachment for a disk gang of a disk harrow and adapted to refill a laterally inward formed ground trough left by the outer disk of the gang and adjacent the unworked ground surface, the combination of the bumper of said disk gang, a leveling disk having a predetermined smaller diameter than the equal diameter disks of said gang, and supporting mechanism for said leveling disk comprising an adjustable extension unit, removable mounting means at one end of said unit to hold said leveling disk, a securing base at the other end of said unit and openings provided in said base, said bumper being constructed with slotted recessed portions therein, bolts to fasten said extension unit to said bumper, said bolts being positioned through said base openings with the heads of said bolts releasably carried within said slotted recessed portions of said bumper, and nuts on said bolts to fxedly attach said base to said bumper,

said adjustable extension unit comprising relatively slidable members connected with said base and said mounting unit respectively to provide means to selectively change the spacing of said leveling disk from the next adjacent gang disk, and fastening means to secure said members together and in a selected adjusted position.

10. A securing means to carry an auxiliary extension 'structure for a disk gang assembly of a disk `harrow having disks, spacing spools for said disks and a securing spindle bolt carrying the aforesaid parts, said securing means comprising, in combination, a complete disk gang assembly terminating with an exterior nal disk securing member xedly carried upon the terminal end of the disk gang spindle bolt, said securing member having reactionary contact with the last disk at a zone spaced radially outwardly with respect to the axis of the spindle bolt of said gang assembly, and said securing member having a plurality of attachment units spaced thereabout and radially outwardly with respect to the spindle bolt axis with said units constructed and arranged for the accommodation of coacting fastening units comprising a part of said auxiliary extension structure.

11. In a securing means of the character set forth in claim l0, but wherein said attachment units each comprise a radially formed recess in the periphery of said `member to accommodate the head of a longitudinally 8 positioned fastening bolt, and flanged portions at vsaid recess to retain said bolt head against longitudinal displacement, said anged portions being arranged to accommodate the stem of the fastening bolt.

12. In a securing means of the character set forth in claim 11, but wherein said securing member is formed with a smooth annular periphery connected by a smooth outer radially arranged terminal face and wherein said attachment units are all confined within the structural exterior of -lthe aforesaid securing member.

References Cited in the le of this patent UNITED STATES PATENTS 472,656 Howard Apr. 12, 1892 579,622 Whipple Mar. 30, 1897 831,789 King Sept. 25, 1906/;l 1,191,985 Noecker July 25, 1916 1,266,328 Schulte May 14, 1918 1,616,576 Iseley Feb. 8, 1927 2,178,052 Smith Oct. 31, 1939 2,199,954 Kelsey May 7, 1940 

